balance Ratio Calculator

Simplify or scale a ratio.

Reduce to lowest terms, or solve for a missing value. Free, no signup.

Simplify a Ratio

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Scale a Ratio (find the missing value)

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Frequently Asked Questions

Divide both numbers by their greatest common divisor. For example, 8:12 simplifies to 2:3.
Given A:B = C:D, if you know A, B, and C, you can solve for the missing value D using cross multiplication.